MODIS Daily Global BRDF/Albedo Quality Observations for Band 7

Daily global data at 30 arc-second (1 km) resolution provides MODIS band 7 valid observation quality information for BRDF/Albedo retrievals. The product is generated by LPCLOUD using 16 days of Terra and Aqua MODIS data, temporally weighted to the ninth day. It is designed as a Climate Modeling Grid (CMG) product for use in climate simulation models.

Use Cases

• Filtering high-quality albedo retrievals in climate models using the band-specific quality flags.
• Assessing data reliability for MODIS band 7 (2.1 µm) in surface reflectance studies based on the valid observation quality layer.
• Integrating temporally-weighted, daily global quality information into land surface models for the ninth day of a 16-day retrieval period.

Strengths

• Global spatial coverage at a consistent 30 arc-second (1 km) resolution.
• Daily production using a 16-day data window for temporal stability.

Limitations

• Contains only one data layer, limiting multi-feature analysis.
• Known issues exist, requiring consultation of external quality assessment resources.

Provenance

Source

LPCLOUD using Terra and Aqua Moderate Resolution Imaging Spectroradiometer (MODIS) data.

Collection Method

Produced daily using 16 days of MODIS data, temporally weighted to the ninth day.

Freshness

Daily

Geography

Global